* The author is part of the community of readers of La Vanguardia
In Las Fotos de los Lectores de La Vanguardia we can contemplate the mask effect of the sun, partially covered by low clouds over the Mediterranean Sea, in Mijas (Málaga).
In addition, we can observe the progressive process of deformation of the sun as the morning gradually progresses from sunrise.
The deformation of the sun is due to the fact that the sun's rays are deflected when passing through the earth's atmosphere. This is an optical phenomenon known as "refraction" and the angle that light is bent after passing through the Earth's atmosphere is known as the "angle of refraction".
Refraction is the change in direction and speed that a wave experiences when passing from one medium to another with a different refractive index.
In one of the photographs we can appreciate the spectacular Omega phenomenon, which is formed when the air, in contact with the surface, very dense and at the same time warmer, produces the refraction of light. The sun takes the form of an Etruscan vase, as defined by the writer Jules Verne.
